minniemaw minniemaw 31-01-2015 Mathematics Answered Simplify the following, leaving your answers in positive index form. (a) 3[tex]b^{3} [/tex] x 4[tex]b^{5} [/tex] (b) 3[tex] x^{2} y^{3} [/tex] ÷ 9[tex] y^{5} [/tex]